engelmann



(No ModeL) 2 Sheets-Sheet 1.`

. A. ENGELMANN.

GOUPLING FOR HEMI" AND WIRE ROBES.

.wmmsss; l INVENTOR=- (No Model.) f I 2 sheets-Sheet 2.

A. ENGELMANN. GOUPLING POR HEMP AND WIRE ROPES. `I

Patented Apr, 14,1885.

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howulhegnnhnr, washinmm D C UixniTnD STATES PATENT OFFICE.

ANTON ENGELMANN, onrrANovER, rnUssIA, GERMANY.A

COUPLING FOR HEMP AND WIRE ROPES.`

SPECIFICATION forming part of Letters; Patent No. 315,490, dama Apii1 14,1885.

Application filed Junel?, 1884. (No model.) A

To @ZZ whom t may concern:

Be it known thatI, ANTON ENGELMANN, a subject of the King of Prussia, residing at Hanover, in the Province of Hanover and Kingdom of Prussia, German Empire, haveinvented certain new and useful Improvements in Couplings for Hemp and Wire Ropes, of which theffollowing is a specification, reference being had therein to the accompanying drawings.

In said drawings, Figure l represents a longitudinal section through a coupling embodying my invention, portions of the rope being also shown, partly in elevation, partly in section. Fig. 1l represents a cross-section on the line I II of Fig. 1. Fig. 2 represents a View, similar to Fig. 1, of a modied form of my coupling. Fig. 3 represents,on a smaller scale, a similar view of another form of my coupling. Fig. 4 represents a similar view ofanother form of my coupling. Figs. 5, 6, and7 represent similar views, enlarged, of other forms of my coupling; and Fig. 6 represents a crosssection on the line III IV of Fig. 6.

This invention relates to couplings for ropes, either of wire or vegetable fiber; and it consists in the peculiar construction and combination of parts Vhereinafter set forth and claimed.

The outer diameter of the, shell b of this coupling is of the same size as the diameter of the rope, so that the outer surface of the shell b of the coupling is on a straight line with that of the rope. Besides this, the entire length of the coupling is as short as possible to enable it to take hold well of the transmission-disk.

This coupling consists of the outer shell, b, which is providedinside with a very coarse screw-thread for the reception of the end of the rope, and a sharp fine thread for the reception ofthe disks or internally screw-threaded collars d/ and h, which are connected withu the movable eye c. On the lower end 'of this eye c the two collars d d are placed, and the first of them is screwed thereon and secured by means of the pin-screws e, whereas the secdirection only, and so that a turning4 back of the eye and of the rope is prevented by the ratchets of the disks d and d. The disks d and d of the second part'of the coupling have no ratchets. i has to be provided with a coupling, theend of the former is madered-hot and a `thread corresponding with the coupling box a is In case, then, that a wire `rope pressed into the end of the rope, and the latter is y,then screwed into the coupling-box a, intendedfor its reception, Figs. l and 3. The hemp wrapped round the end of the wire rope squeezes itself in between the coupling-boxV a and the shell b, which is connected with the former bymeans of disk h.

Between the disk h and the disk d and eye Ywas worn ont in a'short time by the tractive power of thestretched'rope, and 'in order to prevent the whole coupling becoming useless thereby the eyes c are provided withfremova- 8c ble dovetail-shaped insertion-pieces `fastened by Iscrew i. inner side of the coupling-box clean likewise be omitted, and in that casca thread is not pressed into the end of the wire rope, but the latter is simply shoved into the smooth coupling-box. i

Another arrangement; for fastening couplings t-o wire ropes is shown in Fig. 4. In this oase, the end of the wire rope `having been The coarse round thread on the shoved into the coupling-box a,`a. round wedge, la, with a grooved head, l, is driven into the core of it. are bent into the groove Z and soldered in there, so that the conical-shaped end of the rope cannot eXtricate itself from the coupling; box. This arrangement eanlikewise be employed successfully with wire ropes,l served with hemp. a coupling the two halves of which are not connected pliably by eyes c, but by a stift' shell, m, which are intended for use 'on disks` of large dimensions.

Fig. 7 shows the connection or joint of a The wire ends ofthe rope (See Fig. 5.) Fig. 6 represents roo hemp rope with a coupling or with an eye. Instead of a round wedge provided with a hollow, a wedge with a screw-shaped thread, q, is employed. The single strands of the rope are laid between this wedge and a disk, n, provided with teeth; but the latter is pressed rmly onto the screw-shaped wedge by means of screw o. In order to secure the rope still better, a second conical shell, t, provided with a coarse thread, is laid into the outer shell, b. The eye c is fastened together with the disk d, screwed onto its end, by means of pin p, which passes through shell b.

The advantages of this invention consist, chiefly, in the following points: first, that in dry or wet weather, or when necessary owing to the unavoidable turning` of new wire or hemp ropes on transmissions, the rope need not be taken off the disks, but can be shortened or lengthened, as required, by turning the eye c by means of a hook-key, which can be done by one man; second, that the joining of rope ends provided with the coupling shown in Fig. 4 can be effected by a simple stiff shell.

I claim as myinvention 1. A shell provided with coarse internal screw-threads for engaging with the end of a rope, and internal threads for holding a collar,

in combination with'said collar, a coupling eye or link, and a collar, d, detachably fastened on the bolt of said eye within said shell in order that said eye may be held by collars, sub stantially as set forth.

2. The collars or disks d d', having interlocking ratchet -teeth which allow them to turn in one direction only, in combination with acoupling-eye having one of said disks or collars fast on its bolt and the other loose thereon, and the shell b, which is screw-thread ed on the latter collar, and provided with coarse internal screw-threads for holding a rope, substantially as set forth.

3. In a rope coupling, the combination of the shell b and the inner coupling-box, a,with the collar h, whereby they are connected, substantially as set forth.

et. The removable dovetailed insertion pieces, in combination with the eyes or links and the screws 73, which fasten them thereto.

In testimony whereof I affix my signature in presence of two witnesses.

A NTON ENGELMANN.

Witnesses:

XVILLIAM G. Fox, J orr. KRACKE. 

